Szechuanella is an extinct genus of corynexochid trilobite that lived marine environments from the middle Cambrian to the early Ordovician in what is now China. Sources Trilobite info (Sam Gon III) External links Trilobite info (Sam Gon III) Leiostegiina Corynexochida genera Cambrian trilobites Cambrian first appearances Ordovician extinctions Cambrian trilobites of Asia Ordovician trilobites of Asia